[tracker/sam/ci-save-logs-on-failure] ci: Upload test suite logs when tests fail

[Sam Thursfield <sthursfield src gnome org>]

commit 27a2614f8a9d8cab59d1be466eb9cc67978281fb
Author: Sam Thursfield <sam afuera me uk>
Date:   Mon Mar 4 09:43:29 2019 +0100

    ci: Upload test suite logs when tests fail
    
    We sometimes see unreproducible test failures in CI. These are often
    hard to debug because they don't occur all the time, and may even be
    triggered by something that only happens on a specific CI runner.
    
    As a step towards debugging these, we should upload the test log as
    a GitLab artifact whenever we see a CI failure. Meson only shows the
    last 100 lines of the test log on stdout, and there seems to be no
    way to cause it to emit more info, so this should help with debugging
    https://gitlab.gnome.org/GNOME/tracker/issues/79.

 .gitlab-ci.yml | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 702895724..67af88366 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,3 +16,8 @@ test-fedora-latest:
       unset $(env|grep -o '^CI_[^=]*')
 
       su tracker -c 'cd build; dbus-run-session -- env LANG=en_US.UTF8 meson test --print-errorlogs'
+
+  artifacts:
+    when: on_failure
+    paths:
+    - build/meson-logs/testlog.txt